Undergoes the following decay chain in order: , , , ,

PHYSICS · Single correct · GCSE · Physics · Atomic Structure · Atomic Structure

Problem

_{94}^{239}\text{Pu}

undergoes the following decay chain in order:

\alpha

\beta^{-}

\beta^{-}

\alpha

\beta^{+}

. Which isotope is formed after the final decay? (a)

_{92}^{235}\text{U}

(b)

_{91}^{231}\text{Pa}

(c)

_{92}^{231}\text{U}

(d)

_{93}^{231}\text{Np}